The livefs CD is very useful for cloning systems, as it gets you a live, working FreeBSD system, booted off a CD. Anything you can do with a minimal install of FreeBSD on a harddrive, you can do from the livefs. It comes in handy quite a bit.

However, it's not a LiveCD in the sense that you can use it for everyday work. It's more a fixit/rescue/test CD.

Depends on how you define "everyday work" and how you approach this everyday work, i.e. what applications you use.

Some call this filesytem loaded in RAM a "holographic shell". The one on the bootonly CD presumes the user will only be concentrated on one task: installing BSD. And the kernel config, filesystem and applications included are probably only those necessary to do this job.

That's why I mentioned the LiveFS/fixit CD, and not the bootonly CD. They are very different things. The LiveFS/fixit CD comes with a full install of FreeBSD, and you can drop to a real shell, with access to everything that FreeBSD ships with.

The "emergency holographic shell" on the install CDs is almost useless, as it only has access to the handful of commands that are on the install CD, mostly geared toward installing the OS.

I wrote my onw script to build my own FreeBSD livecd, because I am no able to find a good alternative to my needs. actually, It take too more humain interactions to create because I don't use "make" (I don't know how to use it).
I try to keep the way FreeBSD start and use the rc.d script file. I create a base system and I am able to fork and add some packages to do a firewall (wifi, etc.) and a print server with cups and samba. The big problem is to load at boot time the configuration that the user (me) saved on a media, but I finally do it (floppy or usb). I learned from frenzy and tinybsd. It will be great to have a general script to build an iso image (liveCD) for FreeBSD.